DTC P0201 / P0202 / P0203 / P0204
Precautions: General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
P0201: Injector Circuit / Open – Cylinder 1 Any of the following conditions is met.
•Fuel injector No.1 drive circuit is open. (3 D/C detection logic)•Fuel injector No.1 drive circuit is shorted to ground. •Fuel injector No.1 drive circuit is shorted to power supply. |
•Fuel injector and/or its circuit
•ECM |
|
P0202: Injector Circuit / Open – Cylinder 2 Any of the following conditions is met.
•Fuel injector No.2 drive circuit is open. (3 D/C detection logic)•Fuel injector No.2 drive circuit is shorted to ground. •Fuel injector No.2 drive circuit is shorted to power supply. |
|
|
P0203: Injector Circuit / Open – Cylinder 3 Any of the following conditions is met.
•Fuel injector No.3 drive circuit is open. (3 D/C detection logic)•Fuel injector No.3 drive circuit is shorted to ground. •Fuel injector No.3 drive circuit is shorted to power supply. |
|
|
P0204: Injector Circuit / Open – Cylinder 4 Any of the following conditions is met.
•Fuel injector No.4 drive circuit is open. (3 D/C detection logic)•Fuel injector No.4 drive circuit is shorted to ground. •Fuel injector No.4 drive circuit is shorted to power supply. |
Circuit Diagram
| [A]: | ECM connector (View: [a]) | C1: | Fuel injector No.3 drive circuit (high side) | 2. | Fuel injector No.1 |
| A1: | Fuel injector No.1 drive circuit (high side) | C2: | Fuel injector No.3 drive circuit (low side) | 3. | Fuel injector No.2 |
| A2: | Fuel injector No.1 drive circuit (low side) | D1: | Fuel injector No.4 drive circuit (high side) | 4. | Fuel injector No.3 |
| B1: | Fuel injector No.2 drive circuit (high side) | D2: | Fuel injector No.4 drive circuit (low side) | 5. | Fuel injector No.4 |
| B2: | Fuel injector No.2 drive circuit (low side) | 1. | ECM |
DTC Confirmation Procedure
NOTE:
Check that the following condition is met in this “DTC Confirmation Procedure”.
•8.5 V < battery voltage < 16.5 V
1)Run engine at idle speed for 1 min.
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “Engine and Emission Control System Check” performed?
|
Go to Step 2.
|
|
| 2 |
Fuel injector drive circuit (high side) and (low side) check
1)When ignition “OFF”, disconnect connector from fuel injector related to DTC.
2)Disconnect “C01” and “E01” connectors from ECM.
3)Check for proper terminal connection to “C01” and “E01” connectors and fuel injector connector.
4)If connections are OK, check the following points.
•Resistance of “A1”, “A2”, “B1”, “B2”, “C1”, “C2”, “D1” or “D2” circuit: less than 1 Ω
•Resistance between each of “A1”, “A2”, “B1”, “B2”, “C1”, “C2”, “D1” and “D2” circuit and ground: infinity •Resistance between “A1” circuit terminal and “A2” circuit terminal at fuel injector connector: infinity •Resistance between “B1” circuit terminal and “B2” circuit terminal at fuel injector connector: infinity •Resistance between “C1” circuit terminal and “C2” circuit terminal at fuel injector connector: infinity •Resistance between “D1” circuit terminal and “D2” circuit terminal at fuel injector connector: infinity •Voltage of “A1”, “A2”, “B1”, “B2”, “C1”, “C2”, “D1” or “D2” circuit: approx. 0 V (When ignition is “ON”) Is check result OK?
|
Go to Step 3.
|
Repair or replace defective wire harness.
|
| 3 |
Fuel injector check
1)Check fuel injector related to DTC.
Is check result OK?
|
Replace ECM and recheck DTC.
|
Replace fuel injector related to DTC.
|